package com.changgou;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.context.annotation.Bean;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@SpringBootApplication
@EnableEurekaClient
public class GatewayWebApplication {
    public static void main(String[] args){
        SpringApplication.run(GatewayWebApplication.class,args);
    }

    /***
     * Ip限流  根据用户的IP进行限流
     * @return
     */
    @Bean(name = "ipKeyResolver")
    public KeyResolver userKeyResolver(){
    return new KeyResolver() {
        @Override
        public Mono<String> resolve(ServerWebExchange exchange) {
            //获取远程客户端的Ip
            String hostName = exchange.getRequest().getRemoteAddress().getHostString();

            return Mono.just(hostName);
        }
    };
    }
}
